 On 28 May 2007, during the celebration of Ginbot 20 (celebrating the downfall of the Derg), Degehabur and Jijiga were the scenes of attacks on civilians and government officials.At least 16 people were killed and 67 injured; one of the injured was Abdulahi Hassan Mohammed, president of the Somali Region, who was speaking at the ceremony.The Ethiopian government blamed the attack on the ONLF, who afterwards denied responsibility for the attack.